We were about to leave the summit around 8.00 a.m. when Johannes Marabini emerged from a dense bush () holding two huge pitchers quite unlike any other species. The most striking feature was the sheer size of the pitchers—they were bigger than anything else on Trus Madi. Later on, we were to realise that they were the second biggest pitchers of all the Borneo ''Nepenthes''—exceeded only by those of ''N. rajah'' on Kinabalu. () The evidence strongly suggested the new pitcher-plant was a hybrid of ''N. lowii'' and ''N. edwardsiana''. The great size of the pitchers agreed with this idea—being characteristic of hybrids. There was no time to investigate the distribution of this new plant. So, after collecting a few specimens we set off down the mountain for the three-day trek back to Tambunan.